Oct  7 06:55:11 www4 sshd\[40048\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.195.189.144  user=root
Oct  7 06:55:13 www4 sshd\[40048\]: Failed password for root from 221.195.189.144 port 39434 ssh2
Oct  7 06:59:04 www4 sshd\[40301\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=221.195.189.144  user=root
...

Oct  7 09:01:09 h2177944 sshd\[21891\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.213.18.41  user=root
Oct  7 09:01:11 h2177944 sshd\[21891\]: Failed password for root from 129.213.18.41 port 35921 ssh2
Oct  7 09:05:30 h2177944 sshd\[22014\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.213.18.41  user=root
Oct  7 09:05:32 h2177944 sshd\[22014\]: Failed password for root from 129.213.18.41 port 56081 ssh2
...

Oct  7 10:02:21 www2 sshd\[26151\]: Invalid user Pa$$w0rd@2018 from 119.254.155.118Oct  7 10:02:23 www2 sshd\[26151\]: Failed password for invalid user Pa$$w0rd@2018 from 119.254.155.118 port 52158 ssh2Oct  7 10:08:31 www2 sshd\[26758\]: Invalid user Blank@2017 from 119.254.155.118
...

Oct  7 12:03:55 vps647732 sshd[5335]: Failed password for root from 54.39.98.253 port 51126 ssh2
...

2019-10-07T03:39:50.689739hub.schaetter.us sshd\[29526\]: Invalid user Qwerty123!@\# from 177.23.184.99 port 48688
2019-10-07T03:39:50.700739hub.schaetter.us sshd\[29526\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177-23-184-99.infobarranet.com.br
2019-10-07T03:39:53.293355hub.schaetter.us sshd\[29526\]: Failed password for invalid user Qwerty123!@\# from 177.23.184.99 port 48688 ssh2
2019-10-07T03:44:20.756187hub.schaetter.us sshd\[29565\]: Invalid user Admin444 from 177.23.184.99 port 58962
2019-10-07T03:44:20.764437hub.schaetter.us sshd\[29565\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177-23-184-99.infobarranet.com.br
...

2019-10-07T07:00:29.122499abusebot-7.cloudsearch.cf sshd\[7664\]: Invalid user Chain123 from 49.234.63.140 port 48908

no

Oct  7 10:33:14 mail postfix/smtpd\[6866\]: warning: unknown\[185.234.219.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct  7 10:41:39 mail postfix/smtpd\[3843\]: warning: unknown\[185.234.219.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct  7 10:50:01 mail postfix/smtpd\[6864\]: warning: unknown\[185.234.219.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Oct  7 11:23:52 mail postfix/smtpd\[6867\]: warning: unknown\[185.234.219.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\

Oct  6 17:56:39 friendsofhawaii sshd\[1919\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=relay.doris-adv.com  user=root
Oct  6 17:56:41 friendsofhawaii sshd\[1919\]: Failed password for root from 46.219.3.139 port 41070 ssh2
Oct  6 18:00:45 friendsofhawaii sshd\[2217\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=relay.doris-adv.com  user=root
Oct  6 18:00:47 friendsofhawaii sshd\[2217\]: Failed password for root from 46.219.3.139 port 52322 ssh2
Oct  6 18:04:56 friendsofhawaii sshd\[2550\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=relay.doris-adv.com  user=root

Oct  7 11:56:31 dedicated sshd[3353]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.99.17.189  user=root
Oct  7 11:56:32 dedicated sshd[3353]: Failed password for root from 192.99.17.189 port 45734 ssh2

$f2bV_matches

Oct  7 12:07:53 h2177944 sshd\[30682\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.209.74.108  user=root
Oct  7 12:07:55 h2177944 sshd\[30682\]: Failed password for root from 186.209.74.108 port 59862 ssh2
Oct  7 12:13:11 h2177944 sshd\[31033\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.209.74.108  user=root
Oct  7 12:13:13 h2177944 sshd\[31033\]: Failed password for root from 186.209.74.108 port 55744 ssh2
...

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/91.121.70.118/ 
 FR - 1H : (137)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : FR 
 NAME ASN : ASN16276 
 
 IP : 91.121.70.118 
 
 CIDR : 91.121.0.0/16 
 
 PREFIX COUNT : 132 
 
 UNIQUE IP COUNT : 3052544 
 
 
 WYKRYTE ATAKI Z ASN16276 :  
  1H - 9 
  3H - 12 
  6H - 17 
 12H - 29 
 24H - 68 
 
 DateTime : 2019-10-07 05:44:48 
 
 INFO : Port MAX SCAN Scan Detected and Blocked by ADMIN  - data recovery

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T: f2b postfix aggressive 3x